<template>
  <a-layout-content
      :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
  >
    <a-form
        layout="inline"
        :model="param"
    >
      <a-form-item>
        <a-input v-model:value="param.name" placeholder="名称">

        </a-input>
      </a-form-item>
      <a-form-item>
        <a-button
            type="primary"
            @click="handleQuery({page:1,size:pagination.pageSize})"
        >
          查询
        </a-button>
      </a-form-item>
    </a-form>
    <a-form-item>
      <a-button type="primary" @click="add()">
        新增
      </a-button>
    </a-form-item>
    <a-table
        :columns="columns"
        :row-key="record => record.id"
        :data-source="ebooks"
        :pagination="pagination"
        :loading="loading"
        @change="handleTableChange"
    >
<!-- pagination="pagination" 分页  @change="handleTableChange 触发改函数
    :loading="loading" 加载图标 ture 就显示加载
  -->
      <template #cover="{ text: cover }">
        <img v-if="cover" :src="cover" alt="vatar" />
      </template>
      <template  v-slot:category="{ text, record }" >
              <span>{{getCategoryName(record.category1Id)}}</span>/<span>{{getCategoryName(record.category2Id)}}</span>
      </template>
      <template v-slot:action="{ text, record }">
        <a-space size="small">
          <router-link  :to="'/admin/doc?ebookId=' + record.id">
          <a-button type="primary" >
            文档管理
          </a-button>
          </router-link>
<!--                                          record 就是每行的值       -->
          <a-button type="primary"  @click="edit(record)">
            编辑

          </a-button>
          <a-popconfirm
              title="确定是否删除? 删除后不可恢复"
              ok-text="是"
              cancel-text="否"
              @confirm="handleDelete(record.id)"

          >
            <a-button type="danger">
              删除
            </a-button>
          </a-popconfirm>

        </a-space>
      </template>
    </a-table>

  </a-layout-content>
  <a-modal
      title="电子书表单"
      v-model:visible="modelVisible"
      :confirm-loading="modelLoading"
      @ok="handleOk"
  >
    <a-form :model="ebook" :label-col="{ span :6}" :wrapper-col="14">
      <a-form-item label="封面">
        <a-input v-model:value="ebook.cover" />
      </a-form-item>
      <a-form-item label="名称">
        <a-input v-model:value="ebook.name" />
      </a-form-item>
      <a-form-item label="分类一">
        <a-input v-model:value="ebook.category1Id" />
        <a-cascader v-model:value="categoryIds"
                    :options="level1"
                    :field-names="{label :'name',value:'id',children:'children'}"
                     />
      </a-form-item>

      <a-form-item label="描述">
        <a-input v-model:value="ebook.description" />
      </a-form-item>
      </a-form>
  </a-modal>
</template>
<script   lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import { message } from 'ant-design-vue';
import {Tool} from "@/util/tool";




export default defineComponent({
  name: 'AdminEbook',
  setup() {
    const param = ref();
    param.value={};
    const ebooks = ref();
    const pagination = ref({
      current: 1,
      pageSize: 4,
      total: 0
    });
    const loading = ref(false);

    const columns = [
      {
        title: '封面',
        dataIndex: 'cover',
        slots: {customRender: 'cover'}
      },
      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: '分类',
        slots: {customRender: 'category'}
      },
      {
        title: '文档数',
        dataIndex: 'docCount'
      },
      {
        title: '阅读数',
        dataIndex: 'viewCount'
      },
      {
        title: '点赞数',
        dataIndex: 'voteCount'
      },
      {
        title: 'Action',
        key: 'action',
        slots: {customRender: 'action'},
      },
    ];
    //数据查询
    const handleQuery = (params: any) => {
      loading.value = true;
      axios.get("ebook/list", {
        //将这些参数传递给后端
        params: {
          page: params.page,
          size: params.size,
          name: param.value.name
        }
      }).then((response) => {
        loading.value = false;
        const data = response.data;
        if(data.success){
          ebooks.value = data.content.list;
          // 重置分页按钮
          pagination.value.current = params.page;
          pagination.value.total = data.content.total;
        }else {
          message.error(data.message);
        }

      })
    };
    /**
     * 表格点击页码时触发
     */
    const handleTableChange = (pagination: any) => {
      console.log("看看自带的分页参数都有啥：" + pagination);
      handleQuery({
        page: pagination.current,
        size: pagination.pageSize
      });
    };
    //增加分类选择
    const categoryIds = ref();
    const level1 = ref();
    let categorys :any
    //查询所有分类
    const handleAll = () => {
      loading.value = true;
      axios.get("category/all",
      ).then((response) => {
        loading.value = false;
        const data = response.data;
        if(data.success){
           categorys = data.content;
          console.log("原始的数组" , categorys.value);
          level1.value=[];
          level1.value= Tool.array2Tree(categorys,0);
          console.log("树形结构",level1.value);
          // 加载完分类后，再加载电子书，否则如果分类树加载很慢，则电子书渲染会报错
          handleQuery({
            page: 1,
            size: pagination.value.pageSize,
          });
        }else {
          message.error(data.message);
        }

      })
    };


    //编辑  +表单

    const ebook =ref();
    const modelVisible = ref(false);
    const modelLoading = ref(false);

    const handleOk = () => {
      modelLoading.value = true;
      ebook.value.category1Id = categoryIds.value[0];
      ebook.value.category2Id = categoryIds.value[1];
      axios.post("ebook/save",ebook.value).then((response) => {
        const data= response.data;
        modelLoading.value=false;
        //判断数据是否传入才进行操作
        if(data.success){
          modelVisible.value=false;

          //重新加载页面
          handleQuery({
            page: pagination.value.current,
            size: pagination.value.pageSize
          });
        }else{
          message.error(data.message);
        }
      });

    };
      const edit = (record: any) => {
        modelVisible.value = true;
        ebook.value=Tool.copy(record);
        categoryIds.value = [ebook.value.category1Id,ebook.value.category2Id];
      };
    //新增
    const add = () => {
      modelVisible.value = true;
      ebook.value={};
    };
    //删除
    const handleDelete = (id:number) =>{
        axios.delete("ebook/delete/"+id).then((response) => {
          const data= response.data;
          //判断数据是否传入才进行操作
          if(data.success){
            //重新加载页面
            handleQuery({
              page: pagination.value.current,
              size: pagination.value.pageSize
            });
          }
        });
    };
    //得到
    const getCategoryName= (cid :number)=>{
      let result = "";
      categorys.forEach((item :any)=>{
          if(item.id === cid){
            result=item.name;
          }
      });
      return result;
    };


      onMounted(() => {
        handleAll();
      });
      return {
        columns,
        ebooks,
        loading,
        pagination,
        modelVisible,
        modelLoading,
        ebook,
        param,
        categoryIds,
        level1,


        getCategoryName,
        handleAll,
        handleTableChange,
        handleDelete,
        handleQuery,
        edit,
        add,
        handleOk
      }
    }

});

</script>